CN2731201Y - Zero friction sealed valve - Google Patents
Zero friction sealed valve Download PDFInfo
- Publication number
- CN2731201Y CN2731201Y CN 200420031953 CN200420031953U CN2731201Y CN 2731201 Y CN2731201 Y CN 2731201Y CN 200420031953 CN200420031953 CN 200420031953 CN 200420031953 U CN200420031953 U CN 200420031953U CN 2731201 Y CN2731201 Y CN 2731201Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ring
- seal
- support ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a zero friction sealed valve. The sealing ring of the valve body is connected with a hydraulic control corrugated pipe assembly which is provided with a corrugated pipe, both ends of the corrugated pipe are connected with a support ring and an annular pressure plate, and the support ring is connected with the circumference, which is provided with a lug boss, at one end of the sealing ring of the valve body; a hydraulic pump is arranged outside the valve body, and three to twenty radial cam shafts are distributed evenly outside the lug boss circumference of the support ring on the valve body; one end in the valve body of the cam shaft is provided with a cam, the cams are arranged under the lug boss of the support ring, and one end out of the valve body of the cam shaft is connected with a hydraulic cylinder. Before the ball valve or the butterfly valve is opened and closed, the hydraulic pump is started, and the hydraulic cylinder is driven to push the cam shafts to rotate; the cams push the lug boss of the support ring, and the support ring can overcome the elastic motion of the corrugated pipe to make the sealing ring of the valve body depart from the sealing ring of the valve core, making the sealing specific pressure between the sealing ring of the valve body and the sealing ring of the valve core become to zero; when the ball valve or the butterfly valve is opened and closed, the frictional force between the sealing ring of the valve body and the sealing ring of the valve core is zero, making the switching resistance of the ball valve or the butterfly valve small. Besides, the sealing couple between the valve body and the valve core is not worn.
Description
Technical field
The utility model relates to a kind of ball valve or butterfly valve, the valve seal spare of particularly a kind of ball valve or butterfly valve.
Background technique
Ball valve and butterfly valve have valve body, the spool that the rotation bodily form is arranged in the valve body of ball valve and butterfly valve, valve body and valve core chamber have sealing pair, sealing pair is made up of the valve seal ring that is set in the seal spool ring on the spool excircle and be set on the valve body inner circumference, the valve seal ring is subjected to axial force along circumference, the valve seal ring is close on the seal spool ring, produces seal pressure, realize the sealing between spool and valve body.In the prior art, the seal pressure of valve seal ring and seal spool interannular is changeless.A kind of bellow type metallic sealing butterfly valve is disclosed among the Chinese patent ZL 03 2 111220.7, the valve seal ring of bellow type metallic sealing butterfly valve is connected with bellows component, bellows component has bellows, the bellows two ends are connected with support ring and annular pressing plate, bellows has elasticity, support ring is pressed on the valve seal ring, annular pressing plate is installed on the valve body with bolt, by adjusting the turnover of annular pressing plate construction bolt, the elastic force size of can regulate bellows, the elastic force of bellows affacts on the valve seal ring that links to each other with support ring by support ring, the advantage of this sealing configuration is that the axial force that affacts on the valve seal ring can be regulated, and the sealing pair of seal spool ring and valve seal interannular can be adjusted under the best specific pressure work.Though this bellow type metallic sealing butterfly valve can the regulation valve body seal ring and the seal pressure of seal spool interannular, but in case after regulating the optimal seal specific pressure of valve seal ring and seal spool interannular, the seal pressure of valve seal ring and seal spool interannular is changeless, when ball valve or butterfly valve switching, valve seal ring and seal spool ring will overcome the frictional force motion that the constant specific pressure of said fixing produces, not only make ball valve or butterfly valve switching resistance big, the sealing pair of valve body and valve core chamber easily also weares and teares, cause ball valve or butterfly valve to reveal, influence the working life of valve.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind ofly when ball valve or butterfly valve open and close, and the seal pressure of valve seal ring and seal spool interannular is zero a kind of Zero-friction sealed valve.
The utility model is realized with the following method.
Zero-friction sealed valve is ball valve or butterfly valve, ball valve or butterfly valve have valve body, spool is arranged in the valve body, valve body and valve core chamber have sealing pair, sealing pair is made up of the valve seal ring that is set in the seal spool ring on the spool excircle and be set on the valve body inner circumference, the valve seal ring is connected with bellows component, bellows component is connected with hydraulic regulating device, it is the hydraulic regulation bellows component, the hydraulic regulation bellows component has bellows, the bellows two ends are connected with support ring and annular pressing plate, annular pressing plate is connected on the valve body with bolt, and support ring is pressed on the valve seal ring, and the circumference that support ring is connected in valve seal ring one end has boss, on the valve shell body oil hydraulic pump is arranged, on the valve body, support ring boss place circumference is evenly equipped with at least three～12 radial cams axles outward, and the end of radial cams axle in valve body has cam, and cam is under the boss of support ring, the end of camshaft outside valve body is connected with oil hydraulic cylinder, is connected with the hydraulic pressure transfer conduit between oil hydraulic cylinder and oil hydraulic pump.
Valve seal spare of the present utility model is connected with the hydraulic regulation bellows component.Adjust the turnover of annular pressing plate construction bolt, the elastic force size of can regulate bellows sealing between spool and valve body can be adjusted under the best specific pressure works.Before ball valve or butterfly valve switching, the primer fluid press pump, drive the cylinder pushes camshaft and rotate, cam promotes the boss of support ring, and support ring can overcome the elasticity of bellows and do axial motion, allow the valve seal ring leave the seal spool ring, the seal pressure that makes valve seal ring and seal spool interannular is zero, and when ball valve or butterfly valve opened and closed, the frictional force of valve seal ring and seal spool interannular was zero, not only make ball valve or butterfly valve switching resistance little, the sealing pair of also can not wear and tear valve body and valve core chamber.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic of zero friction sealed ball valve;
Fig. 2 is the hydraulic piping schematic representation that the A-A of Fig. 1 analyses and observe;
Fig. 3 is the local hydraulic piping schematic representation of the B of Fig. 2 to expansion;
Fig. 4 is the schematic representation of C-C section sealing vice division chief among Fig. 2;
Fig. 5 is the cross-sectional schematic of the sealing vice division chief of zero friction sealed butterfly valve.
Embodiment
Fig. 1, Fig. 2, Fig. 3, among Fig. 4, Zero-friction sealed valve is a ball valve, ball valve has valve body 1, spool 2 is arranged in the valve body, valve body and valve core chamber have sealing pair, sealing pair is formed by being set in seal spool ring 3 on the spool excircle and the valve seal ring 4 that is set on the valve body inner circumference, the valve seal ring is connected with the hydraulic regulation bellows component, the hydraulic regulation bellows component has bellows 5, the bellows two ends are connected with support ring 6 and annular pressing plate 7, annular pressing plate is connected on the valve body with bolt 8, support ring is pressed on the valve seal ring, the circumference that support ring is pressed in valve seal ring one end has boss 9, and oil hydraulic pump 10 is arranged on the valve body excircle, is evenly equipped with four radial cams axles 11 on the valve body excircle, the end of radial cams axle in valve body has cam 12, cam is under the boss of support ring, and camshaft is connected with oil hydraulic cylinder 13, is connected with hydraulic pressure transfer conduit 14 between oil hydraulic cylinder and oil hydraulic pump.
Among Fig. 5, Zero-friction sealed valve is a butterfly valve, butterfly valve has valve body 15, spool 16 is arranged in the valve body, valve body and valve core chamber have sealing pair, sealing pair is formed by being set in seal spool ring 17 on the spool excircle and the valve seal ring 18 that is set on the valve body inner circumference, the valve seal ring is connected with the hydraulic regulation bellows component, the hydraulic regulation bellows component has bellows 19, the bellows two ends are connected with support ring 20 and annular pressing plate 21, annular pressing plate is connected on the valve body with bolt 22, support ring is connected on the valve seal ring, the circumference that support ring is against valve seal ring one end has boss 23, and oil hydraulic pump (not drawing among the figure) is arranged on the valve body excircle, is evenly equipped with three～12 radial cams axles 24 on the valve body excircle, the end of radial cams axle in valve body has cam 25, cam is under the boss of support ring, and camshaft is connected with oil hydraulic cylinder 26, is connected with hydraulic pressure transfer conduit (not drawing among the figure) between oil hydraulic cylinder and oil hydraulic pump.
Be evenly equipped with three～12 radial cams axles on the above-mentioned valve body excircle, physical dimension by valve varies in size, the uniform radial cams number of axle can be to surpass three～12 a plurality of by the physical dimension size of valve on the valve body excircle, when the uniform radial cams number of axle should guarantee that camshaft rotates, allow circumference axial motion along support ring of support ring on same plane.
Hydraulic regulation bellows component in the utility model is particularly suitable for combining with metallic seal and makes metal seal ball valve or butterfly valve, also is suitable for combining with elastomeric seal making ball valve or butterfly valve.Combine when making ball valve or butterfly valve with elastomeric seal, the seal spool ring that is set on the spool excircle is the elastomeric seal ring, the valve seal ring that is set on the valve body inner circumference is a metallic packing ring, the seal spool ring that perhaps is set on the spool excircle is a metallic packing ring, and the valve seal ring that is set on the valve body inner circumference is the elastomeric seal ring.
Claims (5)
1. Zero-friction sealed valve, be ball valve or butterfly valve, ball valve or butterfly valve have valve body, spool is arranged in the valve body, valve body and valve core chamber have sealing pair, sealing pair is made up of the valve seal ring that is set in the seal spool ring on the spool excircle and be set on the valve body inner circumference, the valve seal ring is connected with bellows component, bellows component has bellows, the bellows two ends are connected with support ring and annular pressing plate, annular pressing plate is connected on the valve body with bolt, support ring is pressed on the valve seal ring, it is characterized in that: above-mentioned bellows component is the hydraulic regulation bellows component that is connected with hydraulic regulating device, and the circumference that above-mentioned support ring is connected in valve seal ring one end has boss, on the valve shell body oil hydraulic pump is arranged, on the valve body, support ring boss place circumference is evenly equipped with three～12 radial cams axles outward, and the end of radial cams axle in valve body has cam, and cam is under the boss of support ring, the end of camshaft outside valve body is connected with oil hydraulic cylinder, is connected with the hydraulic pressure transfer conduit between oil hydraulic cylinder and oil hydraulic pump.
2. by the described Zero-friction sealed valve of claim 1, it is characterized in that: the sealing pair of described valve body and valve core chamber is a metal-seated.
3. by the described Zero-friction sealed valve of claim 1, it is characterized in that: the sealing pair of described valve body and valve core chamber is the elastic material sealing pair.
4 by the described Zero-friction sealed valve of claim 3, and it is characterized in that: in the described elastic material sealing pair, the seal spool ring that is set on the spool excircle is the elastic materials seal ring, and the valve seal ring that is set on the valve body inner circumference is a metallic packing ring.
5. by the described Zero-friction sealed valve of claim 3, it is characterized in that: in the described elastic material sealing pair, the seal spool ring that is set on the spool excircle is a metallic packing ring, and the valve seal ring that is set on the valve body inner circumference is the elastic materials seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031953 CN2731201Y (en) | 2004-06-08 | 2004-06-08 | Zero friction sealed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031953 CN2731201Y (en) | 2004-06-08 | 2004-06-08 | Zero friction sealed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731201Y true CN2731201Y (en) | 2005-10-05 |
Family
ID=35051537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031953 Expired - Fee Related CN2731201Y (en) | 2004-06-08 | 2004-06-08 | Zero friction sealed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731201Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062231A (en) * | 2010-12-28 | 2011-05-18 | 吴军 | Hard-soft double-layer sealing combined valve seat of corrugated pipe |
| CN102401149A (en) * | 2011-11-14 | 2012-04-04 | 武汉市第二船舶设计研究所 | Pressure regulating compensation single valve seat two-way sealing device |
| CN103016763A (en) * | 2012-12-29 | 2013-04-03 | 能发伟业铁岭阀门股份有限公司 | Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring |
| CN112555445A (en) * | 2020-11-19 | 2021-03-26 | 胡伟校 | Ball valve with valve core tightly attached to sealing element |
| CN112555446A (en) * | 2020-11-19 | 2021-03-26 | 胡伟校 | Ball valve with high sealing performance |
-
2004
- 2004-06-08 CN CN 200420031953 patent/CN2731201Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062231A (en) * | 2010-12-28 | 2011-05-18 | 吴军 | Hard-soft double-layer sealing combined valve seat of corrugated pipe |
| CN102401149A (en) * | 2011-11-14 | 2012-04-04 | 武汉市第二船舶设计研究所 | Pressure regulating compensation single valve seat two-way sealing device |
| CN102401149B (en) * | 2011-11-14 | 2014-12-10 | 武汉市第二船舶设计研究所 | Pressure regulating compensation single valve seat two-way sealing device |
| CN103016763A (en) * | 2012-12-29 | 2013-04-03 | 能发伟业铁岭阀门股份有限公司 | Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring |
| CN112555445A (en) * | 2020-11-19 | 2021-03-26 | 胡伟校 | Ball valve with valve core tightly attached to sealing element |
| CN112555446A (en) * | 2020-11-19 | 2021-03-26 | 胡伟校 | Ball valve with high sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20120608 |